Find it easily with the locator: These devices allow you to quickly locate your object via the application (compatible with Apple iOS 7+ and Android 4.3+). Activate the playback sound to locate objects within 10/25m and easily track them wherever you are. Don't forget anything: apply the GPS tracker to any object you you always want to be in control. If the item goes out of Bluetooth range, the tracker will send a notification within 10 minutes to help you go back and retrieve it. Each device includes a lanyard that easily attaches to your keys, luggage, suitcase, wallet, backpack, purse, dog or cat collar, etc., as well as the included pre-installed battery (CR2032). You can check the battery status in "Soso" APP and replace it in time. Long battery life ensures your AirTags are always active to help you find your items. Product size 36*36*5.4mm Note: Data are all measured manually, please allow 1-3cm error due to differences in light and display, there may be color differences, please refer to the actual item received.